Salix Pharmaceuticals has launched sales of its second drug, Azasan, which it licensed from aaiPharma in Wilmington, NC.

Azasan is used to prevent urinary tract and kidney problems, transplants, and sever arthritis.

Azasan will be sold by Salix in 75 and 100 mm offerings. AaiPharma retained rights to the 50 mm dose.

Saliax developed and took to market its first drug, Colazal, a treatment for ulcerative colitis.